How do I install the Ruby Resource Map skill?

Run npx skillmds@latest add tomevault-io/ruby-resource-map in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Ruby Resource Map safe to use?

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Which AI agents work with Ruby Resource Map?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ruby Resource Map free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Ruby Resource Map?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ruby Resource Map by tomevault-io — Agent Skill

Name: Ruby Resource Map
Author: tomevault-io

File contents

Ruby Knowledge

Authoritative resource map for Ruby development. Use these sources rather than searching broadly.

Never use these sources:

ruby-doc.org
apidock.com

Official Documentation

Primary source: https://docs.ruby-lang.org/en/

Other Useful Resources

https://rubyreferences.github.io/rubychanges/ - Version-by-version changelog with examples
https://railsatscale.com/ - Shopify engineering blog (Latest updates on Ruby and its toolings)

Core & Standard Library

Term	Meaning
Default gem	Ships with Ruby, cannot uninstall
Bundled gem	Ships with Ruby, can uninstall/replace
Standard library	Part of Ruby itself, not a gem

To check which gem versions ship with each Ruby release: https://stdgems.org/

Version	Documentation	Standard Library
3.2	https://docs.ruby-lang.org/en/3.2/	https://docs.ruby-lang.org/en/3.2/standard_library_rdoc.html
3.3	https://docs.ruby-lang.org/en/3.3/	https://docs.ruby-lang.org/en/3.3/standard_library_rdoc.html
3.4	https://docs.ruby-lang.org/en/3.4/	https://docs.ruby-lang.org/en/3.4/standard_library_md.html
4.0	https://docs.ruby-lang.org/en/4.0/	https://docs.ruby-lang.org/en/4.0/standard_library_md.html
master	https://docs.ruby-lang.org/en/master/	https://docs.ruby-lang.org/en/master/standard_library_md.html

Testing Frameworks

Framework	GitHub	Documentation
minitest	https://github.com/minitest/minitest	https://docs.seattlerb.org/minitest/
test-unit	https://github.com/test-unit/test-unit	https://test-unit.github.io/

Typing Ecosystem

Two type definition formats exist in Ruby:

RBI - Sorbet's format. Uses Ruby DSL syntax (sig { ... }) in .rb and .rbi files.
RBS - Official Ruby format (Ruby 3.0+). Dedicated syntax in .rbs files or inline as comments.

Sorbet Ecosystem

Sorbet is a static and runtime type checker for Ruby, maintained by Stripe. Key companion tools:

Tapioca - Generates RBI files for gems and DSLs (Rails, ActiveRecord, etc.)
Spoom - Coverage analysis, strictness bumping, dead code detection, signature migration

RBS Ecosystem

rbs - Official CLI for working with RBS files (prototype, list, methods)
Steep - Type checker that uses RBS

RBS Inline Comments

Sorbet supports RBS-style inline type annotations using #: comment syntax. This eliminates the need for separate .rbi files or verbose sig blocks.

Docs: https://sorbet.org/docs/rbs-comments

Converted and distributed by TomeVault — claim your Tome and manage your conversions.

---name: ruby-resource-mapdescription: Use when working in a Ruby project - provides authoritative sources for documentation, typing, and tooling---# Ruby KnowledgeAuthoritative resource map for Ruby development. Use these sources rather than searching broadly.**Never use these sources:**- ruby-doc.org- apidock.com## Official Documentation**Primary source:** <https://docs.ruby-lang.org/en/>### Other Useful Resources- <https://rubyreferences.github.io/rubychanges/> - Version-by-version changelog with examples- <https://railsatscale.com/> - Shopify engineering blog (Latest updates on Ruby and its toolings)### Core & Standard Library| Term | Meaning || ---- | ------- || Default gem | Ships with Ruby, cannot uninstall || Bundled gem | Ships with Ruby, can uninstall/replace || Standard library | Part of Ruby itself, not a gem |To check which gem versions ship with each Ruby release: <https://stdgems.org/>| Version | Documentation | Standard Library || ------- | ------------- | ---------------- || 3.2 | <https://docs.ruby-lang.org/en/3.2/> | <https://docs.ruby-lang.org/en/3.2/standard_library_rdoc.html> || 3.3 | <https://docs.ruby-lang.org/en/3.3/> | <https://docs.ruby-lang.org/en/3.3/standard_library_rdoc.html> || 3.4 | <https://docs.ruby-lang.org/en/3.4/> | <https://docs.ruby-lang.org/en/3.4/standard_library_md.html> || 4.0 | <https://docs.ruby-lang.org/en/4.0/> | <https://docs.ruby-lang.org/en/4.0/standard_library_md.html> || master | <https://docs.ruby-lang.org/en/master/> | <https://docs.ruby-lang.org/en/master/standard_library_md.html> |## Testing Frameworks| Framework | GitHub | Documentation || --------- | ------ | ------------- || minitest | <https://github.com/minitest/minitest> | <https://docs.seattlerb.org/minitest/> || test-unit | <https://github.com/test-unit/test-unit> | <https://test-unit.github.io/> |## Typing EcosystemTwo type definition formats exist in Ruby:- **RBI** - Sorbet's format. Uses Ruby DSL syntax (`sig { ... }`) in `.rb` and `.rbi` files.- **RBS** - Official Ruby format (Ruby 3.0+). Dedicated syntax in `.rbs` files or inline as comments.### Sorbet Ecosystem[Sorbet](https://github.com/sorbet/sorbet) is a static and runtime type checker for Ruby, maintained by Stripe. Key companion tools:- [Tapioca](https://github.com/Shopify/tapioca) - Generates RBI files for gems and DSLs (Rails, ActiveRecord, etc.)- [Spoom](https://github.com/Shopify/spoom) - Coverage analysis, strictness bumping, dead code detection, signature migration### RBS Ecosystem- [rbs](https://github.com/ruby/rbs) - Official CLI for working with RBS files (prototype, list, methods)- [Steep](https://github.com/soutaro/steep) - Type checker that uses RBS### RBS Inline CommentsSorbet supports RBS-style inline type annotations using `#:` comment syntax. This eliminates the need for separate `.rbi` files or verbose `sig` blocks.Docs: <https://sorbet.org/docs/rbs-comments>---> Converted and distributed by [TomeVault](https://tomevault.io/claim/st0012) — claim your Tome and manage your conversions.

Frequently asked questions

Ruby Resource Map